A look at the first smartphone that retailed at $900 in 1993, to the iPhone revolution and beyond.
Last month, TechNet revealed that the US mobile app market has generated almost 500,000 jobs, while the iPhone's 2007 launch is highlighted as the main driver behind apps and smartphones taking off.
Now, FrugalDad has created an infographic on the back of Technet's report, looking at the very first smartphone, the most popular apps and developments within the market across the past 20 years.